WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 141

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

w
Production Data
REGISTER BITS BY ADDRESS
R0 (00h)
Reset / ID
R1 (01h)
Power
Management
(1)
R02 (02h)
Power
Management
(2)
REGISTER
ADDRESS
15:0
15:13
12
11
10
9
8
7:5
4
3
2:1
0
15
14
13
12
11
10
BIT
SW_RESET_CHIP_
ID
[15:0]
(rr)
SPK_ENA
(rw)
OUT3_ENA
(rw)
OUT4_ENA
(rw)
LOUT_ENA
(rw)
ROUT_ENA
(rw)
MICBIAS_ENA
(rw)
VMID_MODE
[1:0]
(rw)
VREF_ENA
(rw)
PLL_ENA
(rw)
TSHUT_ENA
(rw)
TSHUT_OPDIS
(rw)
OPCLK_ENA
(rw)
LABEL
8990h
000b
0b
0b
0b
0b
0b
000b
0b
0b
00b
0b
0b
1b
1b
0b
0b
0b
DEFAULT
Writing to this register resets all registers to their default state.
Reading from this register will indicate device family ID 8990h.
Reserved - Do Not Change
SPKMIX Mixer, Speaker PGA and Speaker Output Enable
0 = disabled
1 = enabled
OUT3 and OUT3MIX Enable
0 = disabled
1 = enabled
OUT4 and OUT4MIX Enable
0 = disabled
1 = enabled
LOUT (Left Headphone Output) Enable
0 = disabled
1 = enabled
ROUT (Right Headphone Output) Enable
0 = disabled
1 = enabled
Reserved - Do Not Change
MICBIAS Enable
0 = OFF (high impedance output)
1 = ON
Reserved - Do Not Change
Vmid Divider Enable and Select
00 = Vmid disabled (for OFF mode)
01 = 2 x 50kΩ divider (Normal mode)
10 = 2 x 250kΩ divider (Standby mode)
11 = 2 x 5kΩ divider (for fast start-up)
VREF Enable (Bias for all analogue functions)
0 = VREF bias disabled
1 = VREF bias enabled
PLL Enable
0 = disabled
1 = enabled
Thermal Sensor Enable
0 = Thermal sensor disabled
1 = Thermal sensor enabled
Thermal Shutdown Enable
(Requires thermal sensor to be enabled)
0 = Thermal shutdown disabled
1 = Thermal shutdown enabled
Reserved - Do Not Change
GPIO Clock Output Enable
0 = disabled
1 = enabled
Reserved - Do Not Change
DESCRIPTION
PD, March 2009, Rev 4.0
WM8990
141